Output Signal Charts

SELECT SWITCH POSITION "A" OUTPUT SIGNAL CHART FOR MONTERO & PICKUP

Check Switch Position; Check Item	ECU Terminal No.	Checked Condition	Specification
1; Power supply	7	Ignition switch "LOCK - ON"	11V to 13V
2; Ignition pulse	10	Ignition switch "LOCK - ON"	2V to 8V
3; N/A	N/A	N/A	N/A
4; Coolant temperature sensor	12	Ignition switch "LOCK - ON", 0°C (32°F)	3.4V to 3.6V
"	"	Ignition switch "LOCK - ON", 20°C (68°F)	2.4V to 2.7V
"	"	Ignition switch "LOCK - ON", 40°C (104°F)	1.5V to 1.8V
"	"	Ignition switch "LOCK - ON", 80°C (176°F)	0.5V to 0.7V
5; Power supply for sensor	3	Ignition switch "LOCK - ON"	4.5V to 5.5V
6; Throttle position sensor (TPS)	13	Ignition switch "LOCK - ON" (warm engine) Accelerator fully closed	0.4V to 0.7V
"	"	Ignition switch "LOCK - ON" (warm engine) Accelerator fully opened	4.5V to 5.5V
7; Vacuum switch for idle position	5	Ignition switch "LOCK - ON"	11V to 13V
"	"	Idling (warm engine)	0V to 0.6V
8; N/A	N/A	N/A	N/A
9; Feed back solenoid valve (FBS)	59	Ignition switch "LOCK - ON"	11V to 13V
"	"	Idling (warm engine)	2V to 12V
10; Slow cut-off solenoid valve (SCS)	53	Idling	0V to 0.6V
"	"	Quick deceleration from above 4000 rpm to idling with "N" position	Momentarily 13V to 15V

SELECT SWITCH POSITION "B" OUTPUT SIGNAL CHART FOR MONTERO & PICKUP

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Test Specification

1; Idle up control solenoid valve

Idling, A/C switch ON ⁽¹⁾

0V to 0.6V

2000 RPM, A/C switch ON ⁽¹⁾

9V to 15V

2; A/C cut-off relay

Ignition switch "LOCK - ON" A/C switch "ON" ⁽¹⁾ Accelerator fully closed

0V to 0.6V

Ignition switch "LOCK - ON" A/C switch "ON" ⁽¹⁾ Accelerator fully opened

0V to 0.6V

3; N/A

N/A

4; Secondary air control solenoid valve

Idling 70 seconds after start of warm engine

0V to 0.6V then 13V to 15V

Quick deceleration from above 2000 rpm to idling with "N"

Momentarily drop

5; N/A

N/A

6; Electric choke relay

Ignition switch "LOCK - ON"

0V to 0.6V

Idling

13V to 15V

7; N/A

N/A

8; Oxygen sensor

Hold rpm constant above 1300 rpm, after 70 seconds from start of warm engine

0V to 1V - (pulsates) ⁽²⁾ 2V to 3V

9; N/A

N/A

10; N/A

N/A

11; N/A

N/A

12; N/A

N/A

⁽¹⁾	ON means compressor clutch engaged.

⁽²⁾	Failure of parts other than oxygen sensor can also cause deviation from the specifications.

SELECT SWITCH POSITION "A" OUTPUT SIGNAL CHART FOR MIRAGE

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Specification

1; Power supply

Ignition switch "LOCK - ON"

11V - 13V

2; Spark advance control solenoid valve

Idling (warm engine)

0V - 0.6V

Start engine. Drive vehicle for some seconds at a speed higher than 8 km/h (5 mph), then hold 2,000 rpm (warm engine)

13 V - 15V

3; Throttle position sensor (TPS)

Ignition switch "LOCK - ON" (engine warm) Accelerator fully closed

0.4V - 0.7V

Ignition switch "LOCK - ON" (engine warm) Accelerator fully opened

4.5V - 5.5V

4; Engine coolant temperature sensor

Ignition switch "LOCK - ON", 0°C (32°F)

3.4V - 3.6V

Ignition switch "LOCK - ON", 20°C (68°F)

2.4V - 2.7V

Ignition switch "LOCK - ON", 40°C (104°F)

1.5V - 1.8V

Ignition switch "LOCK - ON", 80°C (176°F)

0.5V - 0.7V

5; N/A

N/A

6; Vacuum switch for idle position

Ignition switch "LOCK - ON"

9V - 13V

Idling (warm engine)

0V - 0.6V

7; Throttle opener control solenoid valve

Idling, Air conditioner switch ON ⁽¹⁾ or lighting switch ON

0V - 0.6V

2,000 RPM, Air conditioner switch ON ⁽¹⁾ or lighting switch ON

9V - 15V

8; Electric choke relay

Ignition switch "LOCK - ON"

0V - 0.6V

Idling

13V - 15V

9; Air conditioner cut-off relay

Ignition switch "LOCK - ON" and air conditioner switch "ON" ⁽¹⁾ Accelerator fully closed

0V - 0.6V

Ignition switch "LOCK - ON" and air conditioner switch "ON" ⁽¹⁾ Accelerator fully Opened (M/T)

0V - 0.6V

Ignition switch "LOCK - ON" and air conditioner switch "ON" ⁽¹⁾ Accelerator fully Opened (A/T)

13V - 15V

10; Power supply for sensor

Ignition switch "LOCK - ON"

4.5V - 5.5V

11; Vehicle speed sensor read switch

Start engine, and drive vehicle slowly with transmission in first gear or drive range

0V - 0.6V (pulsates) Over 2V

12; Secondary air control solenoid valve

Idling, 70 seconds after start of warm engine

0V - 0.6V then 13V - 15V

Quick deceleration from above 2,000 rpm to idling with gear in "N" position

Momentarily drop

⁽¹⁾	ON means compressor clutch engaged.

SELECT SWITCH POSITION "B" OUTPUT SIGNAL CHART FOR MIRAGE

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Specification

1; Shift select lever 4th or 5th switch

Ignition switch "LOCK - ON" Transmission in 1st

0V to 0.6V

Ignition switch "LOCK - ON" Transmission in 4th or 5th

11V to 13V

2; Feed back solenoid valve (FBS)

Ignition switch "LOCK - ON"

11V to 13V

Idling (warm engine)

2V to 12V

3; Cold advance control solenoid valve

Start engine. Drive vehicle for some seconds at a speed higher than 8 km/h (5MPH), then hold engine idling, Engine Coolant temp lower than 50°C (122°F)

0V to 0.6V

Start engine. Drive vehicle for some seconds at a speed higher than 8 km/h (5MPH), then hold engine idling, Engine Coolant temp 50°C (122°F) or higher

13V to 15V

4; Ignition pulse

Ignition switch "LOCK - START"

2V to 8V

5; Cold mixture heater relay

Idling, Engine coolant temp. lower than 60°C (140°F)

0V to 0.6V

Idling, Engine coolant temp. 60°C (140°F) or higher

13V to 15V

6; N/A

N/A

7; Slow cut solenoid valve (SCS)

Idling

0V to 0.6V

Quick deceleration from above 4,000 rpm to idling with gear at "N" position

Momentarily 13V to 15V

8; Oxygen sensor

Hold speed constant above 1,300 rpm, 70 seconds after start of warm engine

0V to 1V ⁽¹⁾ (Pulsates) 2V to 3V

9; N/A

N/A

10; N/A

N/A

11; N/A

N/A

12; Shift indicator lamp (SIL)

Ignition switch "LOCK - ON"

After 5 seconds, voltage drops 8V to 13V then 0V to 0.5V

⁽¹⁾	Failure of parts other than oxygen sensor can also cause deviation from the specifications.

SELECT SWITCH POSITION "A" OUTPUT SIGNAL CHART FOR CORDIA & TREDIA WITH MANUAL TRANSMISSION

Check Switch Position; Check Item	ECU Terminal No.	Checked Condition	Specification
1; Power Supply	7	Ignition switch "LOCK - ON"	11V to 13V
2; Ignition pulse	10	Idling	4V to 10V
3; N/A	N/A	N/A	N/A
4; Coolant temperature sensor	12	Ignition switch "LOCK - ON", 0°C (32°F)	3.4V to 3.6V
"	"	Ignition switch "LOCK - ON", 20°C (68°F)	2.4V to 2.7V
"	"	Ignition switch "LOCK - ON", 40°C (104°F)	1.5V to 1.8V
"	"	Ignition switch "LOCK - ON", 80°C (176°F)	0.5V to 0.7V
5; Power supply for sensor	3	Ignition switch "LOCK - ON"	4.5V to 5.5V
6; Throttle position sensor (TPS)	13	Ignition switch "LOCK - ON" Accelerator fully closed	0.4V to 0.7V
"	"	Ignition switch "LOCK - ON" Accelerator fully opened	4.5V to 5V
7; Vacuum switch for idle position	5	Ignition switch "LOCK - ON"	9V to 13V
"	"	Idling (warm engine)	0V to 0.6V
8; N/A	N/A	N/A	N/A
9; Feed back solenoid valve (FBS)	59	Ignition switch "LOCK - ON"	11V to 13V
"	"	Idling (warm engine)	2V to 12V
10; Slow cut-off solenoid valve (SCS)	53	Idling	0V to 0.6V
"	"	Quick deceleration from above 4000 rpm to idling with "N" position	Momentarily 13V to 15V
11; Spark advance control solenoid valve	58	Idling (warm engine)	0V to 0.6V
"	"	2000 RPM	13V to 15V
12; N/A	N/A	N/A	N/A

SELECT SWITCH POSITION "B" OUTPUT SIGNAL CHART FOR CORDIA & TREDIA WITH MANUAL TRANSMISSION

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Specification

1; Idle up control solenoid valve

Idling, Air conditioner switch ON ⁽¹⁾ or lighting switch ON

0V to 0.6V

2000 rpm, Air conditioner switch ON ⁽¹⁾ or lighting switch ON

9V to 15V

2; A/C cutoff relay

Ignition switch "LOCK - ON" and A/C switch "ON" ⁽¹⁾ Accelerator fully closed

0V to 0.6V

Ignition switch "LOCK - ON" and A/C switch "ON" ⁽¹⁾ Accelerator fully opened

0V to 0.6V

3; N/A

N/A

4; Second air control solenoid valve

Idling, after 70 seconds from start of warm engine

13V to 15V

Quick deceleration from above 2000 rpm to idling with "N"

Momentarily drops

5; N/A

N/A

6; N/A

N/A

7; N/A

N/A

8; Oxygen sensor ⁽²⁾

Hold rpm constant above 1300 rpm, after 70 seconds from start of warm engine

0V to 1V (pulsates) 2V to 3V

9; N/A

N/A

10; N/A

N/A

11; N/A

N/A

12; N/A

N/A

⁽¹⁾	ON means compressor clutch engaged.

⁽²⁾	Because there are sometimes malfunctions and differences from the specifications in parts other than oxygen sensor, take care to inspect the parts connecting the other air-fuel ratio controls.

SELECT SWITCH POSITION "A" OUTPUT SIGNAL CHART FOR CORDIA & TREDIA WITH AUTOMATIC TRANSMISSION

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Specification

1; Power Supply

Ignition switch "LOCK - ON"

11V to 13V

2; Spark advance control solenoid valve

Idling (warm engine)

0V to 0.6V

2000 rpm

13V to 15V

3; Throttle position sensor (TPS)

Ignition switch "LOCK - ON" (warm engine) Accelerator fully closed

0.4V to 0.7V

Ignition switch "LOCK - ON" (warm engine) Accelerator fully opened

4.5V to 5V

4; ISC motor for retraction

Idling, A/C switch ON - OFF ⁽¹⁾

Momentarily over 6V, then 0V to 2V ⁽²⁾

5; ISC motor for extension

Idling, A/C switch ON - OFF ⁽¹⁾

Momentarily over 6V, then 0V to 2V ⁽²⁾

6; Idle position switch

Ignition switch "LOCK - ON"(warm engine) Accelerator fully closed

0V to 0.6V

Ignition switch "LOCK - ON"(warm engine) Accelerator fully opened

9V to 13V

7; ISC high motor position switch

Ignition switch "LOCK - ON"

After 15 seconds voltage drops 8V to 13V then 0V to 0.6V

8; Electric choke relay

Ignition switch "LOCK - ON"

0V to 0.6V

Idling

13V to 15V

9; ISC low motor position switch

Ignition switch "LOCK - ON"

Voltage drops toward 0V after 15 seconds 8V to 13V, then momentarily drop

10; Power steering switch

Idling

9V to 13V

Turn steering wheel to stop

0V to 0.6V

11; Air conditioner switch

Ignition switch "LOCK - ON" Air conditioner switch OFF

0V to 0.6V

Ignition switch "LOCK - ON" Air conditioner switch ON ⁽¹⁾

11V to 13V

12; Secondary air control solenoid valve

Idling, 70 seconds after start of warm engine

13V to 15V

Quick deceleration from above 2000 rpm to idling with "N" or "P" position

Momentarily drops

⁽¹⁾	ON means compressor clutch engaged.

⁽²⁾	Pointer indicates over 6V momentarily. If it is hard to read indication, repeat the OFF - ON or ON - OFF operation of air conditioner switch several times. If the pointer of voltmeter deflects, ISC motor is normal.

SELECT SWITCH POSITION "B" OUTPUT SIGNAL CHART FOR CORDIA & TREDIA WITH AUTOMATIC TRANSMISSION

Check Switch Position; Check Item

ECU Terminal No.

Checked Condition

Specification

1; Air conditioner cutoff relay

Idling, A/C switch OFF - ON ⁽¹⁾

12V to 15V, then 0V to 0.6V

2; Feed back solenoid valve (FBS)

Ignition switch "LOCK - ON"

11V to 13V

Idling (warm engine)

2V to 12V

3; N/A

N/A

4; Ignition pulse

Idling

4V to 10V

5; Coolant temperature sensor

Ignition switch "LOCK - ON" 0°C (32°F)

3.4V to 3.6V

Ignition switch "LOCK - ON", 20°C (68°F)

2.4V to 2.7V

Ignition switch "LOCK - ON", 40°C (104°F)

1.5V to 1.8V

Ignition switch "LOCK - ON", 80°C (176°F)

0.5V to 0.7V

6; Select lever "N" switch

Ignition switch "LOCK - ON" Transaxle in "P" or "N"

0V to 0.6V

Ignition switch "LOCK - ON" Transaxle in "D"

6V to 13V

7; Slow cutoff solenoid valve (SCS)

Idling

0V to 0.6V

Quick deceleration from above 4000 rpm to idling with "D" position ⁽²⁾

Momentarily 11V to 15V

8; Oxygen sensor ⁽³⁾

Hold rpm constant above 1300, after 70 seconds from start of warm engine

0V to 1V (pulsates) 2V to 3V

9; N/A

N/A

10; N/A

N/A

11; N/A

N/A

12; N/A

N/A

⁽¹⁾	ON means compressor clutch engaged.

⁽²⁾	Speed sensor must show vehicle is moving.

⁽³⁾	Because there are sometimes malfunctions and differences from the specifications in parts other than the oxygen sensor, take care to inspect the parts connecting the other air-fuel ratio controls.